public override bool OnPaint(Terrain terrain, IOnPaint editContext)
{
commonUI.OnPaint(terrain, editContext);
if (!commonUI.allowPaint)
{
return(false);
}
int[] numWorkGroups = { 8, 8, 1 };
using (IBrushRenderUnderCursor brushRender = new BrushRenderUIGroupUnderCursor(commonUI, "ThermalErosion", editContext.brushTexture))
{
if (brushRender.CalculateBrushTransform(out BrushTransform brushXform))
{
PaintContext paintContext = brushRender.AcquireHeightmap(true, brushXform.GetBrushXYBounds(), 1);
paintContext.sourceRenderTexture.filterMode = FilterMode.Bilinear;
//figure out what size we need our render targets to be
Rect brushRect = brushXform.GetBrushXYBounds();
m_Eroder.inputTextures["Height"] = paintContext.sourceRenderTexture;
Vector2 texelSize = new Vector2(terrain.terrainData.size.x / terrain.terrainData.heightmapResolution,
terrain.terrainData.size.z / terrain.terrainData.heightmapResolution);
m_Eroder.ErodeHeightmap(terrain.terrainData.size, brushRect, texelSize);
Vector3 brushPos = new Vector3(commonUI.raycastHitUnderCursor.point.x, 0, commonUI.raycastHitUnderCursor.point.z);
FilterContext fc = new FilterContext(terrain, brushPos, commonUI.brushSize, commonUI.brushRotation);
fc.renderTextureCollection.GatherRenderTextures(paintContext.sourceRenderTexture.width, paintContext.sourceRenderTexture.height);
RenderTexture filterMaskRT = commonUI.GetBrushMask(fc, paintContext.sourceRenderTexture);
Material mat = GetPaintMaterial();
Vector4 brushParams = new Vector4(commonUI.brushStrength, 0.0f, 0.0f, 0.0f);
mat.SetTexture("_BrushTex", editContext.brushTexture);
mat.SetTexture("_NewHeightTex", m_Eroder.outputTextures["Height"]);
mat.SetTexture("_FilterTex", filterMaskRT);
mat.SetVector("_BrushParams", brushParams);
brushRender.SetupTerrainToolMaterialProperties(paintContext, brushXform, mat);
brushRender.RenderBrush(paintContext, mat, 0);
}
}
return(true);
}
public override bool OnPaint(Terrain terrain, IOnPaint editContext)
{
commonUI.OnPaint(terrain, editContext);
if (!commonUI.allowPaint)
{
return(false);
}
int[] numWorkGroups = { 8, 8, 1 };
using (IBrushRenderUnderCursor brushRender = new BrushRenderUIGroupUnderCursor(commonUI, "ThermalErosion", editContext.brushTexture))
{
if (brushRender.CalculateBrushTransform(out BrushTransform brushXform))
{
PaintContext paintContext = brushRender.AcquireHeightmap(true, brushXform.GetBrushXYBounds(), 1);
paintContext.sourceRenderTexture.filterMode = FilterMode.Bilinear;
//figure out what size we need our render targets to be
Rect brushRect = brushXform.GetBrushXYBounds();
m_Eroder.inputTextures["Height"] = paintContext.sourceRenderTexture;
var heightRT = RTUtils.GetTempHandle(RTUtils.GetDescriptorRW((int)brushRect.width, (int)brushRect.height, 0, RenderTextureFormat.RFloat));
Vector2 texelSize = new Vector2(terrain.terrainData.size.x / terrain.terrainData.heightmapResolution,
terrain.terrainData.size.z / terrain.terrainData.heightmapResolution);
m_Eroder.ErodeHeightmap(heightRT, terrain.terrainData.size, brushRect, texelSize);
Material mat = GetPaintMaterial();
var brushMask = RTUtils.GetTempHandle(paintContext.sourceRenderTexture.width, paintContext.sourceRenderTexture.height, 0, FilterUtility.defaultFormat);
Utility.SetFilterRT(commonUI, paintContext.sourceRenderTexture, brushMask, mat);
Vector4 brushParams = new Vector4(commonUI.brushStrength, 0.0f, 0.0f, 0.0f);
mat.SetTexture("_BrushTex", editContext.brushTexture);
mat.SetTexture("_NewHeightTex", heightRT);
mat.SetVector("_BrushParams", brushParams);
brushRender.SetupTerrainToolMaterialProperties(paintContext, brushXform, mat);
brushRender.RenderBrush(paintContext, mat, 0);
RTUtils.Release(brushMask);
RTUtils.Release(heightRT);
}
}
return(true);
}
